Acetylene lamp



Oct., 11,1927,

A. L. HANSEN ACETYLENE LAMP Filed oct. 2s. i921 Patented Oct. 11, 1927.

nidi r a ,rar

eure" AUGIE L. HANSEN), F EVANSTON, ILLlNQIA'S,

nonriinnn Lener.

Application filed October 28,l 1791211. Serial No. lLQSQ.

Thisr invention relates to improvements in 'acetylene lamps7 and more particularly vto dCebyleiie lamps of the port-fable type adapted lbody and ajcolbdetaiik container iin die.. lower portion of the lamp body, and `means for conducting the water and controlling its iiow into the body of the carbide.

The, ordinary type of acetylene lampv is so designed as to regulate the feed ott-he water to the carbide in an vamount su'icient to produce a quantity of gas required at' the'burner to produce a flame oi' desired intensity7 the force of gravity being the only l means utilized for thisA purpose. In some instances and under certain conditions oi operation, it isy desirable that an excessive amount of water be introduced into the card bide, as, for instance, to promotey rapid gasl generation as when the lampf is being started orwhere increased flame intensity or flame is desired.

The present invention contemplates, therefore, anormal gravity feed from the water reservoir to the carbide, together with a combination of elements whereby a forced method of feeding may be resorted tov when fil desired, the object of the invention being to provide a simple and eicient method' oi' force feedingapplicable to ordinary types of acetylene lamps.

The novel features combined in the invention are clearly disclosed in the drawings, in which Fig. 1 is a View in side elevation of a typical acetylene lamp with a portion broken away to. show the interior lconstruction thereof.

Fig. 2 is an enlarged detailed view in vertical section of the feeding stem with associated.parts,

Fig. 3 isan enlarged View in cross-section 5 taken on line 3T3 of Fig. 2, and

Fig, lis a similar view talren on linek 4-4`of Fig. 2.

As illustrating the application of the invention, an acetylene lamp such as shown in Figure 1 consists of two main parts; namely,` a cylindric body member 2 having a chamber inits upper portion forming the water reservoir pfand a detachablenrecep'- tacl-e l having screw threaded engaoenier'it with the body ofV the lamp 21orniingt le'car?y bide receptacle.y Mounted upon t'hembody i member 2 is a rededor dan@ @naar Whlch lamented Eff-burner (110i Shown) @ed Vtbel eee'beineeodddeied to the burner by i suitable passagecommunicating with chamber immediately bellowf the water. reseri/or 3.1 These detalle, of'ooueteuotifon 'are not @eenen i@ die; present. invaliden, da therefore are omitted`. 'i l y? 4" Extending transversely of, tbev body meer bei, and forming tbe bottoni of the' Water reservoir 8, ie wall. 6 ebaoed inwardly troni the open lower end otsaid body niernber7 tbe intervening epilee forming the'onen gas chamber hereinbefore referred 13.0,-

tbe ebrei vali 7* ofk tbe, body member. is Provided@ iliiie opening normally Closed by e binge @op 8 'mounted upon'a bracket 9.;

beyne Suitable Connection. with die lamp# body-A A book, member 10 leale@ .Seeuredto the lamp body, and ie utilized for attaebiiie' the lamp to any desired supportinggmelllbelif Egitendijiig Centrally and' axially the lamp' body '2 is a cylindric tube or stern 11V Passing thru the t0n Wall' 7 downwardly thru tbe bottom wall. 6 of the water reeefb; table 3 and terminating Some dietanoebey. lid

the lower ebdI of tbebody member, t'

its extremity occupies: a position cen al oitv tbe, carbide tank d when tbe Same. le. wobed to, the lamb body- The moudtiiigof.

the stein 11 is carriedI out in suchv a way 'als'. to be watertight' 'at the' points where'ther Seme Passes. thru. the Wallefof the body mein.-

bei', alliov the interior of the stein gom; '9

muiioaiee with the water` reeebtaele thro. the medium of a small openin 121 located just above andadjaoent to the" ottomwell' endwise abutting engagement with the up;V

wardly'iacing shoulder or seat of the re-- duced portion 13, and provided at its upper end with an enlarged head or threadedportion having internally screwl threaded er1- gagement with the upper portion of the .stem

l1' and d laterallyextending armdtinj tegral with that portion of the head 15 exterior of the stem 11. The external diameter of the sleeve 14 is slightly less than the internal diameter of the stern 11 so as to provide a passageway therebetween, altho when the sleeve is in bearing engagement with the reduced portion 13, communication is cut off between the spaces above and below the same. In other words, the sleeve serves as a valve member controlling the passage of water thru the inlet opening 12, and thence downwardly to the lower` end of the stem 1l by rotating the sleeve in either direction to move theend thereof away from or in contact with the seat forming shoulder 13 thru the medium of the screw 'threaded connection between said sleeve and the @stein 11.

Extending axially of the stem 11 and enclosed within the sleeve 14 is a plunger rod 16 extending substantially the full length of Said stem. At the upper end of the rod and located beyond the head 15 of the sleeve 14 is a head 16a, adapted to be grasped by the lingers in operating the plunger rod in a manner hereinafter to be pointed out. Continuing downwardly beyond the sleeve 14 in which the rod lits rather snugly, the same passes thru the reduced portion 13, terminating in an enlarged cylindric end portion or piston 17. The lower portion of the stem 11 adjacent the piston 17 of the plunger rod is somewhat reduced in internal diameter to a size slightly greater than the diameter of the piston 17, and forms a cylinder 18 cooperating with the piston in a manner here- `inafter to be set forth.

The extreme lower end of the stem 11 and beyond the piston 17 is treated in the following manner: A plurality of slots 11a extend'longitudinally 'of the same and preferably arranged in angles of 90 degrees apart, there being preferably four of such slots as clearly shown in Fig. 3. Loosely retained in the lower end of the stem 11 is a solid penet-rating member 19y consisting of conical shaped head 2O provided with a reduced neck portion 21 projecting from the base of said head, said neck portion inturn having an enlarged extremity 21L fitting within the end of the stem 11, the edges thereof being swaged or upset inwardly so as to engage or grip the reduced portion of the stem 21 intermediate the head 2O and the enlarged end portion 21 as clearly shown in'Fig. 2.

` It is to be observed that the longitudinal opening thru the intermediate reduced portion 13 has a greater diameter than that of the rod 16 so that the water passing thru the inlet opening 12 is free to pass downwardly to the lower end of the stem, providing the sleeve or valve 14 is raised sufficiently to open the passageway thru said reduced portion 13. Assuming therefore that the valve sleeve 14 is open, the water from the reserfed to the carbide, this increased action ris accomplished by grasping the head 16a of the plunger rod and working the same up and l down with a reciprocating movement. rIhe result of this manipulation is as follows: The water passing downwardly into the lower end of the stem momentarily accumulates inthe cylinderflike portion 18 ofthe Stem, and as the plunger rod is forced downwardly, the water thus accumulated is forced outwardly into the body of the carbide by the action of the piston 17. In this manner pressure is applied to the water, thereby promoting the gas generation bv forcibly feeding the water to the carbide.

Manifestly, the feeding of the water may be regulated by the amount that the sleeve valve 14 is opened, so that the generation of gas maybe regulated independently of the force feeding plunger 16. Furthermore, the

amount that said sleeve valve is opened may be determined by its angular position with reference to the lamp body, the latter being preferably provided with a sector formed along the periphery of the top wall 7 by the provision of a series of knobs 22 which engage the bent or looped end 23 at the end of the lever arm 16a. In this manner the sleeve valve can be retained in any desired position of valve opening.

TheV function of the penetrating member 19 is to enable the stem to be forced downwardly thru the carbide, which practically fills the tank 4, the carbide being ordinarily in the form of lum-ps which do not readily` yield to the introduction of the stem.v Furthermore, after the operation of the lamp for any length of time, the carbide becomes slaked; that is to say, it disintegrates in the form of a damp powdered mass which is inclined to clog the discharge slots 18 at the lower end of the stem. If this condition occurs, thereby interrupting the feeding of the water into the carbide, the penetrating member 19 can be grasped by the fingers, and

with a gyratory motion, coupled with endwise motion, the slaked carbide can be loosened and readily removed from the slots 18, thus freeing any obstruction that might result.

Having described a preferred embodimen of the invention and the function thereof, I claim as my invent-ion:

In an acetylene lamp, the combination ofv a water receptacle, a carbide receptacle below said water receptacle, a feed tube extending from said water receptacle into said carbide receptacle and provided with an outlet ait its tion of said tube and acting to force the lower end, said tube having a cylinder-like Water through said outlet in the reoiprocat- Vlo portion of reduced diameter adjacent said ing movement of said rod. outlet and a portion of increased diameter In Witness whereof, I hereunto subscribe 5 above said cylinder-like portion and commumy name this 22nd day of October, A. D. nioating therewith, and aplunger-rod mount- 1921, f f ed in said tube and having a` piston-like head p adapted to fit Within said cylinder-like por- AUGIE L. HANSEN. 

